sspc漆膜厚度测量.docVIP

SSPC: The Society for Protective Coatings PAINT APPLICATION SPECIFICATION NO. 2 Measurement of Dry Coating Thickness with Magnetic Gages SSPC PA2 使用磁性测厚仪测量涂层干膜厚度 1. Scope范围 1.1 GENERAL: This standard describes the procedures to measure the thickness of a dry ? lm of a nonmagnetic coating applied on a magnetic substrate using commercially available magnetic gages. These procedures are intended to supplement manufacturers’ operating instructions for the manual operation of the gages and are not intended to replace them. 总则：本标准描述了使用市场上可买到的磁性测厚仪来测量施工在磁性底材上的非磁性涂层的干膜厚度的程序。该程序作为仪器手工操作说明的补充，但并不替代设备制造商的操作说明书。 1.2 The procedures for adjustment and measurement are described for two types of gages: pull-off gages (Type 1) and electronic gages (Type 2). 校准和测量的规程适用于两类测厚仪：拉开式测厚仪（类型1）和电子测厚仪（类型2）。 1.3 The standard de?nes a procedure to determine if the ?lm thickness over an extended area conforms to the minimum and the maximum levels speci?ed. This procedure may be modi?ed when measuring dry ?lm thickness on overcoated surfaces (see Note 7.1). 本标准定义了用来确定漆膜厚度是否超出规定的最小值和最大值的范围的程序。该程序在覆涂过的表面测量干膜厚度的时候可能会被修改。 2. Description and Use描述和使用 2.1 DEFINITIONS定义 2.1.1 Gage Reading: A single reading at one point. 测厚仪读数：单个测点获取的单个读数值 2.1.2 Spot Measurement: The average of at least three gage readings made within a 4 cm (1.5 inch) diameter circle. 单个组测量值：在直径4cm（1.5英寸）的圆周范围内至少3个测厚仪读数的平均值。 2.1.3 Calibration: The controlled and documented process of measuring traceable calibration standards and verifying that the results are within the stated accuracy of the gage. Calibrations are typically performed by the gage manufacturer or by a quali?ed laboratory in a controlled environment using a documented process. The standards used in the calibration are such that the combined uncertainties of the resultant measurement are less than the stated accuracy of the gage. 校准：测量可追踪的校准标准试块的受控和备有证明文件的程序并验证其结果的在测厚仪规定的精度范围之内。校准一般比较典型地是由仪器制造商来进行的，或者由合格的实验室在受控环境下使用受控的具文件证明的程序来进行。校准过程中